At that time I had complete confidence in Russian policy and I believed that the Western Allies deliberately allowed Russia and Germany to fight each other to the death.
- Klaus Fuchs Quote

Before I joined the project most of the English people with whom I had made personal contacts were left wing and affected to some degree or other by the same kind of philosophy.
- Klaus Fuchs Quote

Finally Germany's attack on Russia seemed to confirm that Russia was not shirking and was prepared to carry out a foreign policy with the risk of war with Germany.
- Klaus Fuchs Quote

I had therefore, no hesitation in giving all the information I had, even though occasionally I tried to concentrate mainly on giving information about the results of my own work.
- Klaus Fuchs Quote

I joined the Communist Party because I felt I had to be in some organization.
- Klaus Fuchs Quote

I think the one thing that most stands out is that my father always did what he believed to be the right thing to do and he always told us that we had to go our own way even if he disagreed.
- Klaus Fuchs Quote

I was lucky because on the morning after the burning of the Reichstag I left my home very early to catch a train to Berlin for the conference of our student organization and that is the only reason why I escaped arrest.
- Klaus Fuchs Quote

In the post war period I began again to have my doubts about Russian policy.
- Klaus Fuchs Quote

Shortly afterwards my father told me that he might be going into the Eastern Zone of Germany. At that time my own mind was closer to his than it had ever been before, because he also believed that they are at least trying to build a new world.
- Klaus Fuchs Quote

Since that time I have had continuous contact with the persons who were completely unknown to me, except that I knew they would hand whatever information I gave them to the Russian authorities.
- Klaus Fuchs Quote

The Communist Party said that I must finish my studies because after the revolution in Germany people would be required with technical knowledge to take part in the building of the Communist Germany.
- Klaus Fuchs Quote

The last time when I handed over information was in February or March 1949.
- Klaus Fuchs Quote